it was a lab question for me so can anyone please help me with this lab ! please

Question

it was a lab question for me so can anyone please help me with this lab ! please include the proper java coding

2. Examine this pattern of asterisks and blanks. write a recursive method that can generate exactly this pattern. write the complete demo program to test your recursive method, your recursive method should be capable of producing larger or smaller patterns of the same variety. Also, demonstrate that in the output of the program. Comment in your prog how this fracta. recursive thinking. the method needs or of code (including recursive calls).

Explanation / Answer

//Class definition
public class Pattern
{
   int value = 1, count = 2, sp = 0;
  
   //To display the pattern
   public void disp(int no)
   {
       //If value is less than 8 and counter is 2
       if(value < 8 && count == 2)
       {
           //If value is odd
           if(value % 2 != 0)
           {
               //Display space
               for(int x = 0; x < sp; x++)
                   System.out.print(" ");
               //Display star
               System.out.println("* ");
               for(int x = 0; x < sp; x++)
                   System.out.print(" ");
               System.out.println("* *");
               for(int x = 0; x < sp+2; x++)
                   System.out.print(" ");
               System.out.println("* ");
               //Increase the space counter by 4
               sp+=4;
               //Recursively call the method
               disp(value +=3);
           }//End of if
           //If value is even
           else
           {
               //Display star
               for(int x = 0; x < value; x++)
                   System.out.print("* ");
               //Next line
               System.out.println();
               //Recursively call method by increasing value
               disp(++value);
           }//End of else
       }//End of outer if
       //If value reaches 8 decrease the counter by 1
       if(value == 8)
           count--;
       //If counter is 1 and value is less than or equal to 8
       if(count == 1 && value <= 8)
       {
           //if Value is less than one exit
           if(value < 1)
               System.exit(0);
           //If even
           if(value % 2 == 0)
           {
               //if value is not 8 give space
               if(value != 8)
                   for(int x = 0; x < sp; x++)
                       System.out.print(" ");
               //Display star
               for(int x = 0; x < value; x++)
                   System.out.print("* ");
               //Next line
               System.out.println();
               //Recursively call the method by decreasing value
               disp(--value);
           }//End of inner loop
           //if odd
           else
           {
               //Display space
               for(int x = 0; x < sp; x++)
                   System.out.print(" ");
               //Display star
               System.out.println("* ");
               for(int x = 0; x < sp; x++)
                   System.out.print(" ");
               System.out.println("* *");
               for(int x = 0; x < sp+2; x++)
                   System.out.print(" ");
               System.out.println("* ");
               //Recursively call method by decreasing value
               disp(value -=3);              
           }//End of else
       }//End of outer if
   }//End of method
  
   //Main method
   public static void main(String ss[])
   {
       Pattern p = new Pattern();
       p.disp(8);
   }//End of main method
}//End of class

Output:

*
* *
*
* * * *
*
* *
*
* * * * * * * *
*
* *
*
* * * *
*
* *
*

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.